The EIA which will have to go through a transboundry procedure will be ready by mid-2017 Radio Prague informs:

http://www.radio.cz/en/section/business/polish-coal-mine-expansion-to-be-raised-in-prime-ministerial-talks

Czech worries about development plans for a massive coal mine on the Polish side of the frontier in the far north of the country are scheduled to be one of the top subjects for discussion when Czech and Polish prime ministers meet for talks on Monday. Czechs are looking for assurance over concerns that water sources on the Czech side of the frontier will be polluted.